Released in 1970, the Cal. 5272 with design code 177 was part of Seiko's domestic market collection. Powered by the 5272 caliber with 26j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-0a4c7d6d16c6]
Also known as: Sumo, Flighty
